(0 19 8)(1 7 5)(2 20 18)(3 16 4)(6 11 9)(10 14 12)(13 17 15)
ALLOWS (11/8)-SEQUENCE
1: (8 10 19)
(0 19 14 12 10)(1 7 5)(2 20 18)(3 16 4)(6 11 9)(8)(13 17 15)
2: (6 11 9)
(0 19 14 12 10)(1 7 5)(2 20 18)(3 16 4)(6)(8)(9)(11)(13 17 15)
3: (0 12 10)
(0)(1 7 5)(2 20 18)(3 16 4)(6)(8)(9)(10)(11)(12 19 14)(13 17 15)
4: (2 20 18)
(0)(1 7 5)(2)(3 16 4)(6)(8)(9)(10)(11)(12 19 14)(13 17 15)(18)(20)